Transition-metal and base-free thioannulation of propynamides with sodium sulfide and dichloromethane for the selective synthesis of 1,3-thiazin-4-ones and thiazolidine-4-ones

Autor: Wang, Sui-Qian, Yan, Xiao-Wei, Hu, Bo-Lun, Zhang, Xing-Guo
Zdroj: In Tetrahedron 20 March 2020 76(12)
Databáze: ScienceDirect